
From the U.S. Code Online via GPO Access
[wais.access.gpo.gov]
[Laws in effect as of January 23, 2000]
[Document not affected by Public Laws enacted between
  January 23, 2000 and December 4, 2001]
[CITE: 42USC7585]

 
                 TITLE 42--THE PUBLIC HEALTH AND WELFARE
 
            CHAPTER 85--AIR POLLUTION PREVENTION AND CONTROL
 
          SUBCHAPTER II--EMISSION STANDARDS FOR MOVING SOURCES
 
                       Part C--Clean Fuel Vehicles
 
Sec. 7585. Standards for heavy-duty clean-fuel vehicles (GVWR 
        above 8,500 up to 26,000 lbs.)
        

(a) Model years after 1997; combined NO<INF>x</INF> and NMHC standard

    For classes or categories of heavy-duty vehicles or engines 
manufactured for the model year 1998 or thereafter and having a GVWR 
greater than 8,500 lbs. and up to 26,000 lbs. GVWR, the standards under 
this part for clean-fuel vehicles shall require that combined emissions 
of oxides of nitrogen (NO<INF>x</INF>) and nonmethane hydrocarbons 
(NMHC) shall not exceed 3.15 grams per brake horsepower hour (equivalent 
to 50 percent of the combined emission standards applicable under 
section 7521 of this title for such air pollutants in the case of a 
conventional model year 1994 heavy-duty diesel-fueled vehicle or 
engine). No standard shall be promulgated as provided in this section 
for any heavy-duty vehicle of more than 26,000 lbs. GVWR.

(b) Revised standards that are less stringent

    (1) The Administrator may promulgate a revised less stringent 
standard for the vehicles or engines referred to in subsection (a) of 
this section if the Administrator determines that the 50 percent 
reduction required under subsection (a) of this section is not 
technologically feasible for clean diesel-fueled vehicles and engines, 
taking into account durability, costs, lead time, safety, and other 
relevant factors. To provide adequate lead time the Administrator shall 
make a determination with regard to the technological feasibility of 
such 50 percent reduction before December 31, 1993.
    (2) Any person may at any time petition the Administrator to make a 
determination under paragraph (1). The Administrator shall act on such a 
petition within 6 months after the petition is filed.
    (3) Any revised less stringent standards promulgated as provided in 
this subsection shall require at least a 30 percent reduction in lieu of 
the 50 percent reduction referred to in paragraph (1).

(July 14, 1955, ch. 360, title II, Sec. 245, as added Pub. L. 101-549, 
title II, Sec. 229(a), Nov. 15, 1990, 104 Stat. 2519.)

                  Section Referred to in Other Sections

    This section is referred to in sections 7584, 7587, 7589 of this 
title.
